Answer:
2
Step-by-step explanation:
2/3 plus 2/3 equals 1 and 1/3
explain why a mixed number is a rational number
Carl's class is collecting canned food for a food drive. If the class collects 3 2/3 pounds on the first day and 4 1/4 pounds on the second day, how many pounds of food have they collected so far?
Answer:
7 11/12
Step-by-step explanation:
3 2/3 + 4 1/4 = 3 8/12 + 4 3/12 = 7 11/12
Question 5 (1 point)
Calculate the area of this composite shape. Use the ti key on the calculator. Round answer
to tenths.
10 yd
12 yd
13 yd
13 yd
Area =
yd2
Use the Quadratic Formula
Use the Quadratic Formula to find the zeros of the given
expression. Be sure to show your steps!
2x2-7x+3
Plz help no links
Answer:
1/2 and 3
Step-by-step explanation:
The quadratic formula is as given:
( -b±√(b^2-4ac) )/2a
To use it, plug in the a,b and c values.
ax^2+bx+c
In this case a is equal to 2, b is equal to -7, and c is equal to 3
plugging it into our formula gives us:
(-(-7)±√(-7^2-4*2*3) )/2*2
Which is equal to:
7±√(49-24) / 4
= 7±√25 / 4
=7±5 / 4
=2/4, 12/4= 1/2, 3
Which graph represents the solution of x2 + 9y2 <81 and y2 + 2
Answer:
C on edge
Step-by-step explanation:
the guy above is correct
The graph that represents the given inequalities is required.
The required graph is attached.
The inequalities are
[tex]x^2+9y^2<81[/tex]
[tex]y^2+2<x[/tex]
Converting to general forms
Ellipse
[tex]\dfrac{x^2}{9^2}+\dfrac{9y^2}{9^2}<1\\\Rightarrow \dfrac{x^2}{9^2}+\dfrac{y^2}{3^2}<1[/tex]
So,
[tex]a=\pm9[/tex]
[tex]b=\pm3[/tex]
The vertices of the major axes are [tex](9,0)[/tex] and [tex](-9,0)[/tex]
The vertices of minor axes are [tex](0,3)[/tex] and [tex](0,-3)[/tex]
The center lies on the origin.
Since, the sign of the inequality is [tex]<[/tex] the shaded region will be inside the ellipse excluding the ellipse.
Parabola
[tex]x>1(y-0)^2+2[/tex]
So,
Vertex of parabola = [tex](2,0)[/tex]
Since, the square term is [tex]y^2[/tex] the axis of symmetry is the [tex]x[/tex] axis.
The parabola will open towards the positive x axis.
The shaded region is the area in the parabola excluding the parabola due to the [tex]>[/tex] sign.
Learn more:
https://brainly.com/question/24210887
A population has a standard deviation of 22. What is the standard error of the
sampling distribution if the sample size is 100?
A. 4.4 D
B. 0.22
C. 0.44
Ο Ο
D. 2.2
Answer:
2.2
Step-by-step explanation:
Find square root of sample size then divid it by your standard deviation
Answer:
2.2
Step-by-step explanation:
i just took the test
CAN SOMEONE PLEASE HELP ME!!! I REALLY NEED IT
n = ___
Answer:
i got n =2
Step-by-step explanation:
setted up a proportion, so 4/n+6 = 9/n+16 and solved from there and got 2.
Which is equivalent to (15x2 + 3x – 6)-(15x2 + 3x + 6)?
Answer:
creo que es hay 15también eso yo pienso
What is the area of a rectangle with side
lengths x - 4 and 5x + 7?
A 7-foot roll of aluminum foil costs $1.68. What is the price per inch?
Answer:
Step-by-step explanation:
141.12
I dont know what to ask im just posting this question so the questions I asked are equal to how much friends I have :-:
Wassup. I'm back from the dead. Satan revived me.
CALL ME BY YOUR NAAAAAAAAAAAAAAAMESimran used a simulation to predict the number of days of rain in his town. A number 1 or 2 indicates a week in which it rained. Numbers 3, 4, or 5 indicate a week in which it did not rain. The results of the simulation are shown above. What is the experimental probability that it will rain in Simran’s town in at least 1 of the next 4 weeks?
Answer:
The answer that I got for mine was 40%
Step-by-step explanation:
This is because there were 10 trials and 4 of the trials had rain. so 40 percent of the trials had rain. Hope it helps!
can sombody help me fast ? !
Answer:
i think D
Step-by-step explanation:
PLEASE HELP NOT WILL HELP ME :,(
I'll make brainliest and give extra points
The following cone has a height of 4 inches and a volume of 12π. 4 in. What is the radius of the cone?
Answer:
3 in.
Step-by-step explanation:
volume = ⅓πr²h
⅓πr²h=12π
r²h=36
r²=9
r = 3 inches
What is the standard deviation of scores for the tenth
level?
O 215
0 311
O 354
0 430
Answer:354
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
GOT IT RIGHT ON TEST!!!!
how many solutions does the nonlinear system of equations graphed below have?
Answer:
A. Zero
Step-by-step explanation:
The upside down parabolic graph has no roots because it not linear
The diagram beloon shows a cup in the shape of a right circular conse and yone of its measurements,
cm
10 cm
Which of the following is closest to the volume, in cubic centimeters, of the cup?
Answer:
option c
volume of right circular cone=1/3 *(pi)* r*r *h
If the measure of angle 5 is 57 degrees, what is the measure of angle 2?
Answer:
3
Step-by-step explanation:
Angle 1 is a supplement of angle 2, and m angle 1 is 123 degrees. Angle 2 is a complement of angle 3. Find m angle 3.
PLEASE Help I need the area in cm2 THanks Have a nice day!!
Answer:
132 cm^2
Step-by-step explanation:
Area of trapezoid = 1/2 ( (7 + 19) * 8) = 26*4 = 104 cm^2
Area of rectangle = 4 x 7 = 28 cm^2
104 cm^2 + 28 cm^2 = 132 cm^2
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
i have like 0 clue what this is. so can someone also explain it please.
Answer:
What they are asking is in which box do each of the following numbers go into.
[tex]\sqrt{2}[/tex] and [tex]\frac{\pi }{2}[/tex] would go in the 'Between 1 and 2' box.
[tex]\sqrt{5}[/tex] goes under the 'Between 2and 3' box.
([tex]\sqrt{3.5}[/tex])^2 is the exact same as 3.5, as the square root and square cancel each other out, so it goes in the 'Between 3 and 4' box.
Hope that this helps!
Find each angle or arc measure
Answer:
17
Step-by-step explanation:
34/2 because the measure of the arc is half of what it would normally be because it touched the other side
There is a bag filled with 2 blue, 4 red
and 5 green marbles.
A marble is taken at random from the
bag, the colour is noted and then it is
not replaced.
Another marble is taken at random.
What is the probability of getting 2 the
same colour?
Answer:
2/11
Step-by-step explanation:
2 + 4+ 5 = 11
Find X.
Round to the nearest tenth.
Z
20 ft
22ft
X
18 ft
Y
X= [?]°
Answer:
X≈ 70.5°
Step-by-step explanation:
Using the cosine rule in Δ XYZ
cos X = [tex]\frac{y^2+z^2-x^2}{2yz}[/tex]
with x = 22, y = 20, z = 18 , then
cos X = [tex]\frac{202+18^2-22^2}{2(20)(18)}[/tex]
= [tex]\frac{400+324-484}{720}[/tex]
= [tex]\frac{240}{720}[/tex] , then
∠ X = [tex]cos^{-1}[/tex] ([tex]\frac{240}{720}[/tex] ) ≈ 70.5° ( to the nearest tenth )
Need this ASAP please
Answer:
C
Step-by-step explanation:
Because if we multiply by 2 both member we have
(x-12)(x-4)= 0
A product has a result that is equal to iif at least one of its factor is equal to 0, so we can solve this two equations:
x-12 = 0
x = 12
x-4 = 0
x = 4
1.35b = 40.5
what is the value of b ?
Answer:
b=30
Step-by-step explanation:
A class has 16 boys and 20 girls. A prefect is to be chosen from the class. If
each student is equally likely to be chosen, calculate the probability that the
selected prefect is:
(a) a boy (b) a girl
Answer:
a) 16/36 b)20/36
Step-by-step explanation:
16 + 20 = 36
36 = how many people are in the class all together
Sorry if it is wrong
Plz help me with this math problem
Answer:
c and a because x = a smaller number
A tea infuser in the shape of a right rectangular pyramid is 7.9 cm tall and has a base 3 cm long and 1.5 cm wide. To make the best tea, the infuser should be 80% filled with tea. What is the volume of tea needed to fill the infuser to 80% of its capacity?
Answer:
28.44 cm³Step-by-step explanation:
Full volume is:
V = lwhV = 3*1.5*7.9 = 35.55 cm³Volume of tea required:
35.55*80/100 = 28.44 cm³Help pleaseeeeeeeeee
9514 1404 393
Answer:
47 -6√10
Step-by-step explanation:
As you know, the area of a square is the square of the side length. It can be helpful here to make use of the form for the square of a binomial.
(a -b)² = a² - 2ab + b²
(√2 -3√5)² = (√2)² - 2(√2)(3√5) + (3√5)²
= 2 - 6√10 + 3²(5)
= 47 -6√10
__
Check
√2-3√5 ≈ -5.29399 . . . . . . . . note that a negative value for side length makes no sense, so this isn't about geometry, it's about binomials and radicals
(√2-3√5)² ≈ 28.02633
47 -6√10 ≈ 28.02633
Use the following situation for #21 - 22
A bag contains 25 red markers, 18 blue markers, and 29 yellow markers. A marker is selected,
replaced, then another marker is chosen. Find each probability
21) P(red then blue)
A. 25/284
B. 30/201
C. 197/5184
D. 25/288
Answer:c
Step-by-step explanation: